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23 条记录 (耗时 0.014 秒)

    Selective production of dimethyldichlorosilane
    3.
    发明授权
    Selective production of dimethyldichlorosilane 失效
    选择性生产二甲基二氯硅烷

    公开(公告)号：US4645851A

    公开(公告)日：1987-02-24

    申请号：US832078

    申请日：1986-02-24

    申请人： Christian Prud'Homme

    发明人： Christian Prud'Homme

    IPC分类号： B01J23/00 ,  B01J23/825 ,  B01J23/835 ,  B01J23/843 ,  B01J27/00 ,  B01J27/138 ,  B01J27/232 ,  C07B61/00 ,  C07F7/12 ,  C07F7/16

    CPC分类号： B01J23/835 ,  B01J23/8435 ,  C07F7/16

    摘要： Dimethyldichlorosilane is selectively and efficiently prepared by reacting methyl chloride with a solid contact mass comprising silicon and a catalytically effective amount of copper or a copper compound, said copper catalyst comprising (i) from about 10 to 1000 ppm of tin, antimony, or admixture thereof, or of a tin or antimony compound, or admixture thereof, (ii) from about 0.01 to 2% by weight of at least one of the metallic additives barium and strontium, or compound thereof, and, optionally, (iii) from about 0.01 to 3% by weight of zinc or a zinc compound.

    摘要翻译： 通过使甲基氯与包含硅和催化有效量的铜或铜化合物的固体接触物质反应来选择性和有效地制备二甲基二氯硅烷，所述铜催化剂包含（i）约10至1000ppm的锡，锑或其混合物 ，或锡或锑化合物或其混合物，（ii）约0.01至2重量％的至少一种金属添加剂钡和锶或其化合物，和任选地（iii）约0.01重量％ 至3重量％的锌或锌化合物。

    Use of substituted biaromatic β-diketone as stabilizing agent of halogenated polymers and resulting polymer
    5.
    发明授权
    Use of substituted biaromatic β-diketone as stabilizing agent of halogenated polymers and resulting polymer 有权
    使用取代的双芳族β-二酮作为卤化聚合物和所得聚合物的稳定剂

    公开(公告)号：US07001940B2

    公开(公告)日：2006-02-21

    申请号：US10472749

    申请日：2002-03-26

    申请人： Christian Prud'Homme ,  Michel Dury

    发明人： Christian Prud'Homme ,  Michel Dury

    IPC分类号： C08K5/07

    CPC分类号： C08K5/07 ,  C08L27/06

    摘要： The present invention relates to the use of a stabilising composition free of derivatives of 6-aminouracyl or 6-aminothiouracyl type, and comprising at least one β-diketone bearing two aromatic nuclei, at least one of which bears at least one substituent on one of the two orthopositions or on the paraposition; the said substituent being chosen from —R, —OR, —SR, —COOH, —O—CF3 and —S—CF3 radicals, in which formulae R is an alkyl radical. The invention also relates to halogenated polymers comprising such a stabilising composition.

    摘要翻译： 本发明涉及不含6-氨基尿酰基或6-氨基硫嘌呤型衍生物的稳定化组合物的用途，并且包含至少一种带有两个芳香核的β-二酮，其中至少一个在至少一个在其中之一上具有至少一个取代基 两个正交位置或旁边; 所述取代基选自-R，-OR，-SR，-COOH，-O-CF 3 - 和-S-CF 3 - ，其中R为 烷基。 本发明还涉及包含这种稳定化组合物的卤化聚合物。

    Process for coating active principles using a pH-sensitive polymer
    6.
    发明授权
    Process for coating active principles using a pH-sensitive polymer 失效
    使用pH敏感聚合物涂覆活性成分的方法

    公开(公告)号：US5296219A

    公开(公告)日：1994-03-22

    申请号：US17445

    申请日：1993-02-12

    申请人： Pierre Ardaillon ,  Christian Prud'Homme

    发明人： Pierre Ardaillon ,  Christian Prud'Homme

    IPC分类号： A61K9/00 ,  A23K1/00 ,  A23K1/16 ,  A23K1/18 ,  A23K1/20 ,  A23P1/08 ,  A61K9/30 ,  A61K9/32 ,  A61K9/50 ,  A61K9/52 ,  A61K9/58 ,  A61K47/32 ,  A61K9/24

    CPC分类号： A61K9/5026 ,  A23K40/35 ,  A61K9/5089 ,  Y10S514/964

    摘要： A process for coating at least one medicinal and/or foodstuff active principle useful for ruminants. At least one monomer is polymerized in an oil-in-water emulsion in the presence of a surfactant to synthesize a pH-sensitive-polymer composition, the composition being obtained in an oil-in-water emulsion. Without isolation of the pH-sensitive polymer, the oil-in-water emulsion is used to coat the active principle, preferably methionine or lysine or a derivative thereof. The pH-sensitive polymer is not dissolved in an organic solvent(s) in either the polymerization or coating steps. The pH-sensitive polymer is stable at pH 6 but at pH 2, the coated active principle is released.

    摘要翻译： 用于涂覆至少一种可用于反刍动物的药物和/或食品活性成分的方法。 在表面活性剂存在下，将至少一种单体在水包油乳液中聚合以合成pH敏感聚合物组合物，该组合物以水包油乳液获得。 不分离pH敏感聚合物时，水包油乳液用于涂覆活性成分，优选甲硫氨酸或赖氨酸或其衍生物。 在聚合或涂布步骤中，pH敏感聚合物不溶于有机溶剂中。 pH敏感聚合物在pH6下是稳定的，但是在pH2时，涂布的活性成分被释放。

    Thermoplastic, elastomeric polystyrene/diorganopolysiloxane block copolymers
    10.
    发明授权
    Thermoplastic, elastomeric polystyrene/diorganopolysiloxane block copolymers 失效
    热塑性弹性体聚苯乙烯/二有机聚硅氧烷嵌段共聚物

    公开(公告)号：US4263401A

    公开(公告)日：1981-04-21

    申请号：US74477

    申请日：1979-09-11

    申请人： Philippe Chaumont ,  Jean Herz ,  Christian Prud'Homme

    发明人： Philippe Chaumont ,  Jean Herz ,  Christian Prud'Homme

    IPC分类号： C08G77/00 ,  C08G77/42 ,  C08G77/442 ,  C08G77/48 ,  C08F297/02

    CPC分类号： C08G77/442

    摘要： Thermoplastic, elastomeric polystyrene/diorganopolysiloxane block copolymers having the structural formula: ##STR1## wherein each R, which may be the same or different, is selected from the group consisting of methyl, ethyl, n-propyl, phenyl and 3,3,3-trifluoropropyl; each R', all of which are the same, is hydrogen or methyl; A is a divalent hydrocarbon radical, free of aliphatic unsaturation, having from 6 to 45 carbon atoms; each G, which may be the same or different, is a radical selected from the group consisting of those of the structural formulae: ##STR2## wherein b is 0, 1, 2 or 3, ##STR3## wherein R" is hydrogen, methyl or --Si R.sub.3, c is 0, 1 or 2 and R is as above defined; each a, all of which are the same, is 0 or 1; and n and n', which may be the same or different, represent any numbers, the sum of which is between 20 and 500, and m is any number between 1 and 1,500, are prepared by anionic "styrene" polymerization, chain extension with a vinylchlorosilane, and, ultimately, hydrosilylation.

    摘要翻译： 具有以下结构式的热塑性弹性体聚苯乙烯/二有机聚硅氧烷嵌段共聚物：其中每个R可以相同或不同，选自甲基，乙基，正丙基，苯基和 3,3,3-三氟丙基; 每个R'都是相同的，是氢或甲基; A是具有6至45个碳原子的不含脂肪族不饱和键的二价烃基; 每个G可以相同或不同，是选自结构式的那些基团：其中b是0,1,2或3，其中R“ 是氢，甲基或-SiR 3，c是0,1或2，R如上所定义; 每个a，都是相同的，是0或1; 和n和n'可以相同或不同，表示任何数字，其总和在20和500之间，m是1-1500之间的任何数字，通过阴离子“苯乙烯”聚合制备，链延长与 乙烯基氯硅烷，最终是氢化硅烷化。